Patents by Inventor Yoshinori Ueji

Yoshinori Ueji has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9658174
    Abstract: Disclosed is an X-ray topography apparatus including an X-ray source, a multilayer film mirror, a slit, a two-dimensional X-ray detector, and a sample moving device that sequentially moves the sample to a plurality of step positions. The X-ray source is a minute focal spot. The multilayer film mirror forms monochromatic, collimated, high-intensity X-rays. The direction in which the multilayer film mirror collimates the X-rays coincides with the width direction of the slit. The step size by which the sample is moved is smaller than the width of the slit. The combination of the size of the minute focal spot, the width of the slit, and the intensity of the X-rays that exit out of the multilayer film mirror allows the contrast of an X-ray image produced when the detector receives X-rays for a predetermined period of 1 minute or shorter to be high enough for observation of the X-ray image.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: May 23, 2017
    Assignee: RIGAKU CORPORATION
    Inventors: Kazuhiko Omote, Keiichi Morikawa, Yoshinori Ueji, Masahiro Tsuchiya, Takeshi Fujimura, Atsunori Kiku
  • Patent number: 9518940
    Abstract: A portable X-ray diffraction apparatus is provided which can be held by a person and on which an image of a spot to be measured can be viewed. The portable X-ray diffraction apparatus includes: X-ray irradiation means that irradiates a sample with collimated X-rays; diffracted X-ray detection means that detects a collimated portion of diffracted X-rays among X-rays diffracted from the sample by the irradiation of the X-rays with the X-ray irradiation means; and signal processing means that processes a signal outputted from the diffracted X-ray detection means. An X-ray diffraction method is used which includes: irradiating a sample with collimated continuous-wavelength X-rays; extracting a collimated portion of diffracted X-rays diffracted from the sample irradiated with the X-rays and condensing the extracted collimated portion of the diffracted X-rays; detecting, using an energy dispersive detection element, the condensed diffracted X-rays; and processing a signal detected by the detection element.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: December 13, 2016
    Assignee: RIGAKU CORPORATION
    Inventors: Asao Nakano, Yoshinori Ueji
  • Patent number: 9335282
    Abstract: Provided is an X-ray topography apparatus capable of separating a desired characteristic X-ray which enters a sample from an X-ray which is radiated from an X-ray source, and increasing an irradiation region of the desired characteristic X-ray. The X-ray topography apparatus includes: the X-ray source for radiating the X-ray from a fine focal point, the X-ray containing a predetermined characteristic X-ray; an optical system including a multilayer mirror with a graded multilayer spacing which corresponds to the predetermined characteristic X-ray, the optical system being configured to cause the X-ray reflected on the multilayer mirror to enter the sample; and an X-ray detector for detecting a diffracted X-ray. The multilayer mirror includes a curved reflective surface having a parabolic cross section, and the fine focal point of the X-ray source is provided onto a focal point of the curved reflective surface.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: May 10, 2016
    Assignee: RIGAKU CORPORATION
    Inventors: Kazuhiko Omote, Yoshinori Ueji, Ryuji Matsuo, Tetsuo Kikuchi
  • Patent number: 9046471
    Abstract: A portable, for example, a hand-held-type, X-ray measurement apparatus, wherein the vibration or hand-shaking of the X-ray measurement apparatus is detected by a vibration-detection sensor such as a distance sensor, a gyro sensor, or the like, and a measurement value for the X-ray intensity obtained using a two-dimensional X-ray detector is corrected on the basis of a variation quantity obtained using the vibration-detection sensor. The correction may be a correction related to an X-ray source, a correction related to an X-ray detector, a correction calculated using the CPU of a computer and a software program, or the like.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: June 2, 2015
    Assignee: RIGAKU CORPORATION
    Inventor: Yoshinori Ueji
  • Publication number: 20150146858
    Abstract: Disclosed is an X-ray topography apparatus including an X-ray source, a multilayer film mirror, a slit, a two-dimensional X-ray detector, and a sample moving device that sequentially moves the sample to a plurality of step positions. The X-ray source is a minute focal spot. The multilayer film mirror forms monochromatic, collimated, high-intensity X-rays. The direction in which the multilayer film mirror collimates the X-rays coincides with the width direction of the slit. The step size by which the sample is moved is smaller than the width of the slit. The combination of the size of the minute focal spot, the width of the slit, and the intensity of the X-rays that exit out of the multilayer film mirror allows the contrast of an X-ray image produced when the detector receives X-rays for a predetermined period of 1 minute or shorter to be high enough for observation of the X-ray image.
    Type: Application
    Filed: November 12, 2014
    Publication date: May 28, 2015
    Applicant: Rigaku Corporation
    Inventors: Kazuhiko OMOTE, Keiichi Morikawa, Yoshinori Ueji, Masahiro Tsuchiya, Takeshi Fujimura, Atsunori Kiku
  • Patent number: 9006673
    Abstract: An X-ray analysis apparatus converts an X-ray intensity distribution of discrete data determined for each pixel, from a first plane where the distribution is known into a second plane where the distribution is not known. The X-ray analysis apparatus projects onto the second plane, a grid point which specifies a pixel on the first plane and an intermediate point between the grid points, as nodes, calculates an area of a region where a polygon expressing a projected pixel specified by the projected nodes overlaps with each pixel on the second plane, to thereby calculate an occupancy ratio of the polygon expressing the projected pixel to each pixel on the second plane and distributes X-ray intensity in the pixel on the first plane to the pixel on the second plane based on the occupancy ratio, to thereby convert the X-ray intensity distribution.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: April 14, 2015
    Assignee: Rigaku Corporation
    Inventors: Kazuki Ito, Yoshinori Ueji, Koichi Kajiyoshi, Kunio Nishi
  • Publication number: 20140021364
    Abstract: An X-ray analysis apparatus converts an X-ray intensity distribution of discrete data determined for each pixel, from a first plane where the distribution is known into a second plane where the distribution is not known. The X-ray analysis apparatus projects onto the second plane, a grid point which specifies a pixel on the first plane and an intermediate point between the grid points, as nodes, calculates an area of a region where a polygon expressing a projected pixel specified by the projected nodes overlaps with each pixel on the second plane, to thereby calculate an occupancy ratio of the polygon expressing the projected pixel to each pixel on the second plane and distributes X-ray intensity in the pixel on the first plane to the pixel on the second plane based on the occupancy ratio, to thereby convert the X-ray intensity distribution.
    Type: Application
    Filed: May 30, 2013
    Publication date: January 23, 2014
    Inventors: Kazuki ITO, Yoshinori UEJI, Koichi KAJIYOSHI, Kunio NISHI
  • Publication number: 20130259199
    Abstract: A portable, for example, a hand-held-type, X-ray measurement apparatus, wherein the vibration or hand-shaking of the X-ray measurement apparatus is detected by a vibration-detection sensor such as a distance sensor, a gyro sensor, or the like, and a measurement value for the X-ray intensity obtained using a two-dimensional X-ray detector is corrected on the basis of a variation quantity obtained using the vibration-detection sensor. The correction may be a correction related to an X-ray source, a correction related to an X-ray detector, a correction calculated using the CPU of a computer and a software program, or the like.
    Type: Application
    Filed: February 1, 2013
    Publication date: October 3, 2013
    Applicant: RIGAKU CORPORATION
    Inventor: Yoshinori UEJI
  • Publication number: 20130259200
    Abstract: Provided is an X-ray topography apparatus capable of separating a desired characteristic X-ray which enters a sample from an X-ray which is radiated from an X-ray source, and increasing an irradiation region of the desired characteristic X-ray. The X-ray topography apparatus includes: the X-ray source for radiating the X-ray from a fine focal point, the X-ray containing a predetermined characteristic X-ray; an optical system including a multilayer mirror with a graded multilayer spacing which corresponds to the predetermined characteristic X-ray, the optical system being configured to cause the X-ray reflected on the multilayer mirror to enter the sample; and an X-ray detector for detecting a diffracted X-ray. The multilayer mirror includes a curved reflective surface having a parabolic cross section, and the fine focal point of the X-ray source is provided onto a focal point of the curved reflective surface.
    Type: Application
    Filed: March 18, 2013
    Publication date: October 3, 2013
    Applicant: RIGAKU CORPORATION
    Inventors: Kazuhiko OMOTE, Yoshinori UEJI, Ryuji MATSUO, Tetsuo KIKUCHI
  • Patent number: 8523391
    Abstract: A flat light source apparatus has a light source board which comprises unit boards, each unit board having a printed circuit board and a light source formed on the printed circuit board, wherein the unit boards are arranged adjacent to each other at least in one direction, and any pair of the unit boards adjacent to each other is integrated by a connecting portion provided therebetween. The apparatus also has a main wire which extends along a plane of the light source board, wherein the main wire extends between adjacent unit boards via the connecting portion such that all of the unit boards are electrically connected to each other by the main wire. The apparatus further has a branch wire for supplying electric power to the light source, the branch wire being provided in each unit board and branching from the main wire in each unit board.
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: September 3, 2013
    Assignee: NEC Corporation
    Inventors: Masahiro Ishizuka, Katsuyuki Okimura, Yoshinori Ueji, Ryuichiro Morinaka, Naoki Tatsumi, Tomoyuki Fukuda
  • Publication number: 20130201655
    Abstract: A light emitting device comprises a light emitting element disposed within a space surrounded by a reflective surface of a reflector disposed on a board. A lower portion of the reflector is placed within a recess formed in the board, and a side wall of the recess is interposed between the lower end of the reflective surface of the reflector and the light emitting element.
    Type: Application
    Filed: March 12, 2013
    Publication date: August 8, 2013
    Inventors: Yoshinori UEJI, Shusaku KON
  • Patent number: 8475007
    Abstract: A light emitting device comprises a light emitting element disposed within a space surrounded by a reflective surface of a reflector disposed on a board. A lower portion of the reflector is placed within a recess formed in the board, and a side wall of the recess is interposed between the lower end of the reflective surface of the reflector and the light emitting element.
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: July 2, 2013
    Assignee: NEC Lighting, Ltd
    Inventors: Yoshinori Ueji, Shusaku Kon
  • Publication number: 20130126745
    Abstract: A semiconductor X-ray detector comprises: a semiconductor X-ray sensor portion 10, which has a plate-like outer shape including an opening portion 11 near to a central portion thereof, and is formed with plural numbers of pixel-like X-ray sensors between a surface and a reverse surface thereof; and a read-out portion 20, which is disposed on the reverse surface of the semiconductor X-ray sensor portion, and executes a predetermined process on each of signals outputted from the plural numbers of the X-ray sensors building up the semiconductor X-ray sensor portion, thereby outputting detected signals therefrom.
    Type: Application
    Filed: July 29, 2011
    Publication date: May 23, 2013
    Inventors: Yoshiaki Watanabe, Yoshinori Ueji
  • Publication number: 20130129051
    Abstract: A portable X-ray diffraction apparatus is provided which can be held by a person and on which an image of a spot to be measured can be viewed. The portable X-ray diffraction apparatus includes: X-ray irradiation means that irradiates a sample with collimated X-rays; diffracted X-ray detection means that detects a collimated portion of diffracted X-rays among X-rays diffracted from the sample by the irradiation of the X-rays with the X-ray irradiation means; and signal processing means that processes a signal outputted from the diffracted X-ray detection means. An X-ray diffraction method is used which includes: irradiating a sample with collimated continuous-wavelength X-rays; extracting a collimated portion of diffracted X-rays diffracted from the sample irradiated with the X-rays and condensing the extracted collimated portion of the diffracted X-rays; detecting, using an energy dispersive detection element, the condensed diffracted X-rays; and processing a signal detected by the detection element.
    Type: Application
    Filed: July 28, 2011
    Publication date: May 23, 2013
    Inventors: Asao Nakano, Yoshinori Ueji
  • Patent number: 8022429
    Abstract: A light emitting device includes a light emitting element (LEE) on a mounting board, a metal reflector surrounding the side surfaces of the LEE on the mounting board, a conductor electrically connecting the LEE with the mounting board, and a sealing resin fitted within the reflector to cover and seal the LEE and the conductor. The mounting board includes a metal baseboard, and an insulating board laminated on the base board with a window hole larger than the outer periphery of the LEE. A mount for the LEE is on the base board within the window hole with a clearance defined from window hole side surfaces. The conductor straddles the clearance, and electrically connects the wiring pattern on the insulating board with the LEE and mount. Part of the clearance associated with the area that projects from the conductor to the mounting board is narrower than the remainder.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: September 20, 2011
    Assignee: NEC Lighting, Ltd.
    Inventors: Yoshinori Ueji, Katsuyuki Okimura
  • Publication number: 20110205739
    Abstract: A light emitting device includes a light emitting element (LEE) on a mounting board, a metal reflector surrounding the side surfaces of the LEE on the mounting board, a conductor electrically connecting the LEE with the mounting board, and a sealing resin fitted within the reflector to cover and seal the LEE and the conductor. The mounting board includes a metal baseboard, and an insulating board laminated on the base board with a window hole larger than the outer periphery of the LEE. A mount for the LEE is on the base board within the window hole with a clearance defined from window hole side surfaces. The conductor straddles the clearance, and electrically connects the wiring pattern on the insulating board with the LEE and mount. Part of the clearance associated with the area that projects from the conductor to the mounting board is narrower than the remainder.
    Type: Application
    Filed: May 5, 2011
    Publication date: August 25, 2011
    Applicant: NEC LIGHTING, LTD
    Inventors: Yoshinori UEJI, Katsuyuki OKIMURA
  • Patent number: 7977697
    Abstract: The present invention provides a light emitting device which comprises a light emitting element, a mounting board on which the light emitting element is mounted, a metal-made reflector surrounding the side surfaces of the light emitting element on the mounting board, a conductor for electrically connecting the light emitting element with the mounting board, and a sealing resin fitted within the reflector to cover and seal the light emitting element and the conductor. The mounting board includes a metal-made base board, and an insulating board laminated on the base board and formed with a window hole extending therethrough which is larger than the outer periphery of the light emitting element. A mount for carrying the light emitting element thereon is disposed on the base board within the window hole with a clearance defined from side surfaces of the window hole.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: July 12, 2011
    Assignee: NEC Lighting, Ltd.
    Inventors: Yoshinori Ueji, Katsuyuki Okimura
  • Publication number: 20100102344
    Abstract: White LED device 20 includes LED chip 13 mounted on substrate 1 made of metal, sealing resin 11 that seals LED chip 13; and glass member 12 formed on sealing resin 11. Glass member 12 contains phosphor 22 and thermal conductivity of sealing resin 11 is lower than that of glass member 12.
    Type: Application
    Filed: February 29, 2008
    Publication date: April 29, 2010
    Inventor: Yoshinori Ueji
  • Publication number: 20090302340
    Abstract: A light emitting device includes a light emitting element (LEE) on a mounting board, a metal reflector surrounding the side surfaces of the LEE on the mounting board, a conductor electrically connecting the LEE with the mounting board, and a sealing resin fitted within the reflector to cover and seal the LEE and the conductor. The mounting board includes a metal baseboard, and an insulating board laminated on the base board with a window hole larger than the outer periphery of the LEE. A mount for the LEE is on the base board within the window hole with a clearance defined from window hole side surfaces. The conductor straddles the clearance, and electrically connects the wiring pattern on the insulating board with the LEE and mount. Part of the clearance associated with the area that projects from the conductor to the mounting board is narrower than the remainder.
    Type: Application
    Filed: May 4, 2009
    Publication date: December 10, 2009
    Applicant: NEC LIGHTING, LTD.
    Inventors: Yoshinori UEJI, KATSUYUKI OKIMURA
  • Publication number: 20090303728
    Abstract: A light emitting device comprises a light emitting element disposed within a space surrounded by a reflective surface of a reflector disposed on a board. A lower portion of the reflector is placed within a recess formed in the board, and a side wall of the recess is interposed between the lower end of the reflective surface of the reflector and the light emitting element.
    Type: Application
    Filed: May 7, 2009
    Publication date: December 10, 2009
    Applicant: NEC LIGHTING, LTD.
    Inventors: Yoshinori UEJI, Shusaku KON